Motor-carriage.



No. 635,603. Patented Oct. 24, |899. W. C. SCHULTZE.

MOTOR CARRIAGE.

(Application led Kay 2, 1899.)

(No Model.) 2 Sheets-#Sheet Vl.

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2 Sheets-Sheet 2 (No Model.)

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VILLIAM O. SOHULTZE, OF BUFFALO, NEW YORK.

MOTO R-CARRIAG E.

SPECIFICATION forming part of Letters Patent No. 635,603, dated October 24, 1899. Application tiled May 2, 1899. Serial No. 715,302. (No model.)

To all whom t may concern:

Be it known that I, WILLIAM C. SoIIULTZn, a citizen of the United States, residing at Buffalo, in the county of Erie and State of New York, have invented certain new and useful Improvements in Motor-Carriages, of which the vfollowing is a specication.

My invention relates to an improved motorcarriage; and the main object of theinvention is to simplify and improve the power-transmitting Inechanism connecting the drivingshaft of the motor to the driven shaft of the carriage and the arrangement of the same to start, stop, or vary the speed of the driven shaft Without stopping or changing the uniform speed of the driving-shaft of the motor.

It also relates to certain details of construction, all of Which Will be fully and clearly hereinafter described and claimed, reference being had to the accompanying drawings, in which- Figure 1 represents a plan view of my improved motorcarriage- Fig. 2 represents a section through the center frictional locking portions of one of the rotating drums. Fig. 3 represents a detached side elevation of one of the center frictional locking portions, the parts being separated from each other and 'the operating-pin removed. Fig. 4t is a detached side elevation of the outer shell of one of the drums or pulleys. Fig. 5 is a central longitudinal section through a portion of the tubular driven shaft and a portion of one of the drums or pulleys. Fig. 6 is a central longitudinal section through the collar and the tubular driven shaft, showing its longitudinal slot through which the pin attached to the collar projects. Fig. 7 is a section through the motor-starting device on or about line o v, Fig. 8. Fig. 8 is a section through the motorstarting device on or about line a: Fig. 7.

In referring to the drawings in detail like numerals designate like parts.

The carriage is composed of the body or frame 1, which is preferably formed of steel tubing, the front and rear axles 2 and 3 sup ported therein, and the wheels 4journaled on said axles. The end portions of the front axle 2 are hinged to the middle or body portion to provide means for steering the carriage, the arms 5, which extend from the hinged ends, being pivotally attached to a connecting-rod G, which is provided with a steering-lever 6a. The motor 7, which may be of any well-known type or style, is supported upon the frame, and its driving-shaft 8 is journaled in the journal-boxes 9 on said frame. The shaft S is provided with a iiywheel 10 and a series of pulleys or drums 11 of diderent diameters. The driven shaft 12 is supported in the journal-boxes 13 on the frame and is tubular in form. A rod 14., having one or Inore enlargements or protuberances 15, is arranged Within the tubular shaft and is longitudinally adjustable therein. The longitudinal adjustment of the rod within the shaft is controlled by a device having a gearwheel 16, which meshes with a toothed rackbar 17, mounted in a support 13, having arecess or depression 19, forming a slideway for the rack-bar. An arm 2O extends at substantially a right angle from one end of the bar 17 and engages ina peripheral groove or depression 2l in a collar 22, mounted upon the shaft 12, and a pin 23 extends from said collar through an elongated longitudinal slot 24. in the shaft 12 and into connection with the rod 14.

' A series of drums or pulleys corresponding to the drums or pulleys upon the drivin g-shaft 8 are mounted upon the driven shaft 12 and are operatively connected theretoby belts, chains, or similar means. The drums or pulleys upon the driven shaft are normally arranged so as to rotate thereon, the outer shell 25 being mounted upon inner portions, each of which is formed in three parts, the center part 27 being rigidly fastened to the shaft and substantially circular in formation, except in two places, an extension 2S projecting from one place and a radial slot 29 being cut from the central opening 30 in the other place, through which the shaft passes to the periphery. The side parts or segments 3l are duplicates of each other and are arranged one on each side of the center part 27, depressions or recesses 32 being providedA at one end of each segment, into which the extension 28 fits, and the opposite ends being cut away, so that when the segments are assembled an opening 33, corresponding to the slot 29, is left, being then the outer portions 34: of the edges IOO of the ends of the segments extending diagonally toward each other to close the openin g as they approach the periphery. An operating-pin 35 is mounted in each of the slots 29 and openings 33 and has a leveled outer end 36, adapted to contact against the diagonallyextending portions 34 of the edges of the segment ends.

The outer shells 25 are each provided with short tubular side extensions 37 of lesser diameter mounted upon the extensions 38, which extend from the center parts 27 and serve to maintain the shells against longitudinal displacement.

The motor or engine is also provided with a starting device which is mounted upon the driving-shaft and comprises an inner ring 39, rigidly mounted upon the shaft and having a series of peripheral notches 40, in which the balls or rolling devices 41 are placed. An

l outer ring 42 is mounted upon the inner ring,

and its surface is formed substantially as shown in Fig. 7, being provided with a series of shallow depressions or pockets 43, into which the balls 4l drop by gravity to prevent independent rotation of the outer ring in one direction upon the inner ring. A band 44, of iiexible material, encircles or partially encircles the outer ring and is fastened at one end thereto,- the opposite end being fastened to a lever or similar device attached to the carriage-frame. A spring 45, connected at one end to the band and at the other tothe frame, serves to maintain the band in the encircling position and to return it to said position and the outer ring to the normal position after said outer ring has been rotated or partially Vrotated by the unwinding of the band to start the motor. The outer ring 42 is held in its position upon the inner ring 39 by theside plates 49 or rings, which are fastened to the inner ring by screws or similar devices 50.

Sprocket or gear wheels 4G are mounted upon the driven shaft which are operatively connected to the sprocket or gear wheels 47, mounted upon the rear axle 3 by chains or similar connections.

The operation of the device is as follows: The motor is first started by unwinding the band which rotates or partially rotates the driving-shaft. The desired speed is attained by moving the rod I4 longitudinally in the tubular driven shaft by the mechanism heretofore described, the enlargements upon the' leys upon the driving-shaft is connected to the corresponding drum or pulley upon the driven shaft by the crossed belt 48, thereby providing means for rotating the driven shaft in the reverse direction to the rotation of the driving-shaft and driving the carriage backward. This belt also serves as a brake to quickly stop the carriage when necessary.

I am aware that changes in the form and proportion of parts in the details of construction of the device herein shown and described as the preferred embodiment of my invention may be made by a skilled mechanic without departing from the principle or sacrificing any advantages of my invention, and I therefore reserve the right to make such modifications and alterations as fairly fall within the scope of/my invention.

I claim as my invention-- l. In a motor carriage the combination with the frame, of a motor mounted thereon, a driving-shaft operated by said motor, a series of drums or pulleys of different diameters mounted on said driving-shaft, a tubular driven shaft mounted in the frame, a corresponding series of annular drums or pulleys mounted upon the shaft and normally rotatable independently thereof, means connecting each of the drums or pulleys upon the driving-shaft to the corresponding drum or pulley upon the driven shaft and a rod longitudinally adjustable within the driven shaft and controlling mechanismadapted to frictionally engage with the inner surface of any one of the annular drums or pulleys upon said driven shaft to lock it to said shaft against independent rotation, an exterior ellar controlling the adjustment of the rod, a rack-bar operatively connected to the collar and an operating device having a gear-wheel meshing with the rack-bar, as set forth.

2. In a motor carriage, the combination with the frame, of a motor mounted thereon, a driving-shaft operated by said motor, a series of drums or pulleys of diiferent diameters mounted on said driving-shaft, a driven shaft mounted in the frame, a corresponding series of drums or pulleys mounted upon the driven shaft and comprising center portions unrotatably mounted upon said driven shaft and having enlargements, side segments encircling the center portionsfand having depressions into which the enlargements of the center portions iit, and outer shells mounted upon the side segments and normally rotatable thereon, means connecting each of the drums or pulleys upon the driving-shaft to the outer shell of the drums or pulleys mounted upon the driven shaft, and mechanism for spreading the segments of any one of the drums or pulleys on the driven shaft to frictionally engage with the outer shell to prevent its independentrotation, as set forth.

3. In a motor-carriage, the combination with the frame, of a motor mounted thereon, a driving-shaft operated by said motor, a series of drums or pulleys of different diameters mounted on said driving-shaft, a driven IOO IIO

series of drums or pulleys mounted upon the driven shaft and comprising center portions unrotatably mounted upon said driven shaft and each having an enlargement and a radial slot, segment portions arranged one on each side of the center portions, and each having a recess at one end ttin g around the enlargements and a cut-away port-ion at the opposite end terminating in a diagonally-extending edge, a pin pivoted in the slot of each of the center portions, and having a leveled outer end adapted to engage with the diagonallyextending edges,`a rod supported Within the tubular driven shaft and longitudinally adjustable therein, and having enlargements adapted to engage With the inner ends of the pins andforce them outward to spread the segments, a collar having a grooved periphery mounted upon the driven shaft and controlling the longitudinal adjustment of the rod, a rack-bar having an arm engaging in the groove in the periphery of the collar and an operating device having a gear-Wheel meshing with the teeth in the rack-bar, as set forth.

4. In a motor-carriage, the combination with the frame, of a driving-shaft operated by said motor, a series of drums or pulleys of dierent diameters mounted on said drivingshaft, a driven shaft mounted in the frame, a corresponding series of drums or pulleys mounted upon the driven shaft and comprising center portions unrotatably mounted upon said driven shaft and each having an enlargement, segment portions arranged one on each side of the center portions, and each having a recess at one end fitting around the enlargements, outer shells mounted upon the segment portions and normally rotatable thereon, a rod supported Within the tubular driven shaft and longitudinally adjustable therein, and having means for spreading any one of the series of segments to frictionally engage the outer. shell and means Within convenient reach of the operator for adjusting the rod, as set forth.

5. In a motorcarriage, the combination with the frame, of a driving-shaft operated by said motor, a series of drums or pulleys of dierent diameters mounted on said drivingshaft, atubular driven shaft mounted in the frame, a corresponding series of drums or pulleys mounted upon the driven shaft and comprising center portions unrotatably mounted upon said driven shaft, segment portions arranged one on each side of the center portions, and each having a recess at one end fitting around the enlargements, outer shells mounted upon the segment portions and normally rotatable thereon, a spreading-pin adapted to be forced between the segments, and means for forcing said pin between the segments of any one of the series to spread the same to frictionally engage the outer shell, as set forth. l

6. In a motor carriage, the combination with the frame, of a driving-shaft operated by said motor, a series of drums or pulleys of different diameters mounted on said drivingshaft, a tubular driven shaft mounted in the frame, a corresponding series of drums or pulleys mounted upon the driven shaft and comprising center portions unrotatably mounted upon said driven shaft, segment portions arranged one on each side ofthe center por-v tions, and each having a recess at one end fitting around the enlargements, outer shells mounted n pon the segment portions and normally rotatable thereon, a spreading-pin for each series of segments and a rod supported Within the tubular driven shaft and longitudinally adjustable therein and having means for operating the pin of any one of said series of segments, as set forth.

7. In a motor-carriage, the combination with the frame, of a driving-shaft operated by said lnotor, a series of drums or pulleys of different diameters mounted on said drivingshaft, a tubular driven shaft mounted in the frame, a corresponding series of drums or pulleys mounted upon the driven shaft and comprising center portions unrotatably mounted upon said driven shaft, segment portions arranged one on each side of the center portions, and each having a recess at one end fitting around the enlargements, outer shells mounted upon the segment portions and normally rotatable thereon, a spreading-pin for each series of segments and a rod supported Within the tubular driven shaft and longitudinally adjustable therein and having enlargements for operating the pin of any one of said series of segments, as set forth.

8. In a motor carriage, the combination with the frame and the operating-motor, of a driven shaft and a driving-shaft, one of said shafts `being tubular, a series of drums or pulleys rigidly mounted upon the solid shaft, a corresponding series of drums or pulleys mounted upon the tubular shaft and normally rotatable independently of said shaft, means connecting each drum of one series to the corresponding drum of the opposite series, a rod supported Within the tubular shaft and longitudinally adjustable therein, and having means for locking any one of the independently-rotatable drums to the shaft, a collar mounted upon the driven shaft and controlling the longitudinal adjustment of the rod, and gearing connecting said collar to an operating device Within convenient reach of the operator, as set forth.

9. In a motor-carriage, the combination with the frame and the operating-motor, of a driven shaft and a driving-shaft, one of said shafts being tubular, a series of drums or pulleys rigidly mounted upon the solid shaft, a corresponding series of drums or pulleys mounted upon the tubular shaft and normally rotatable independently of said shaft, means connecting each drum of one series to the corresponding drum of the opposite series, a rod IOO IIO

collar and an operating device havin g zt geen*a Wheel meshing with the teeth in the rack-bar,

as set forth. v

WM. C. SCHULTZE.

"Witnesses:

JOHN W. FREY,

a, rack-bar having an arm engaging with the l G. A. NEUBAUER. 

